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Interference Detection Among Secondary Users Deployed in Television Whitespace

Notcker, Joachim and Adetiba, E. and Abayomi, Abdultaofeek and Oshin, Oluwadamilola and Greyson, Kenedy Aliila and Ifijeh, H. A. and Babatunde, Alao (2022) Interference Detection Among Secondary Users Deployed in Television Whitespace. In: International Conference on Intelligent Systems Design and Applications, 2023, Online.

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Interference is one of the significant issues in television white space (TVWS) that limits the scalability of secondary user networks, lowers the quality of service, and causes harmful destruction to primary users. Interference among secondary users is one of the severe problems in TVWS because there is no legal rule that governs the coexistence of secondary nodes in the available white space channels. Many studies have been conducted to recognize the presence of primary signals in order to identify spectrum gaps and avoid interference between primary and secondary users, but the majority of them failed to detect interference among secondary users. Furthermore, the few works that mitigate interference among secondary users, rather than detecting it, assume interference. Therefore, in this paper, we develop an interference detection algorithm using an energy detector. To enhance the energy detector’s functionality, we consider dynamic thresholds rather than static ones. We also modify the binary hypothesis to account for interference between two non-cooperative users coexisting in TVWS. We simulate the energy detector technique in MATLAB R2020a environment and utilised various signal-to-noise ratios (SNR) values. With an SNR of −8 dB, the proposed algorithm attains a maximum performance of 95.35% as the probability of detection and meets the standard set by IEEE 802.22 which requires the probability of detection to surpass or equal to 90%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Television White Space  Interference Detection  Secondary Users  SNR
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: nwokealisi
Date Deposited: 04 Aug 2023 08:55
Last Modified: 04 Aug 2023 08:55

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